chore: update langchain latest version to 1.5.3

[dd-octo-sts]

Update langchain lockfiles and dependency package lockfiles.
This performs the following updates:

1. Some langchain lockfiles use langchain latest. This will update langchain and dependencies.
2. Some langchain lockfiles use a pinned (non-latest) version of langchain, but require the latest version of another package. This will update all such packages.

[cit-pr-commenter-54b7da]

Codeowners resolved as

.riot/requirements/1631cdb.txt                                          @DataDog/apm-python
.riot/requirements/166aa1b.txt                                          @DataDog/apm-python
.riot/requirements/176838a.txt                                          @DataDog/apm-python
.riot/requirements/1785cfd.txt                                          @DataDog/apm-python
.riot/requirements/1d20b78.txt                                          @DataDog/apm-python
.riot/requirements/1d65880.txt                                          @DataDog/apm-python
.riot/requirements/1f09c40.txt                                          @DataDog/apm-python
.riot/requirements/39c94a2.txt                                          @DataDog/apm-python
.riot/requirements/69b607b.txt                                          @DataDog/apm-python
.riot/requirements/bf481d9.txt                                          @DataDog/apm-python
.riot/requirements/ffee599.txt                                          @DataDog/apm-python
scripts/integration_registry/registry.yaml                              @DataDog/apm-core-python @DataDog/apm-idm-python
supported_versions.json                                                 @DataDog/apm-core-python @DataDog/apm-idm-python

[datadog-datadog-prod-us1-2]

 

⚠️ Warnings

🚦 11 Pipeline jobs failed

DataDog/apm-reliability/dd-trace-py | build linux serverless: [amd64, cp315-cp315, v113741238-d2b8243-manylinux2014_x86_64, 1]     

DataDog/apm-reliability/dd-trace-py | build linux serverless: [amd64, cp315-cp315, v126532274-233089d-musllinux_1_2_x86_64, 1]     

DataDog/apm-reliability/dd-trace-py | build linux serverless: [arm64, cp315-cp315, v113741357-d2b8243-manylinux2014_aarch64, 1]     

View all 11 failed jobs.

ℹ️ Info

No other issues found (see more)

🧪 All tests passed
❄️ No new flaky tests detected

Useful? React with 👍 / 👎

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 47b7a1c | Docs | Datadog PR Page | Give us feedback!}

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: f0b4ab7e79

ℹ️ About Codex in GitHub

Codex has been enabled to automatically review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

When you sign up for Codex through ChatGPT, Codex can also answer questions or update the PR, like "@codex address that feedback".

[chatgpt-codex-connector]

Keep Mistral min version aligned with support

When the integration-registry tests run, this new minimum conflicts with ddtrace/contrib/internal/mistralai/patch.py, where _supported_versions() still advertises {"mistralai": ">=2.0.0"}. tests/contrib/integration_registry/test_contrib_versions.py::test_supported_versions_align_with_registry requires the registry's tested minimum major.minor to match the declared supported minimum, so having only 2.4.x here will fail that check and also stops the metadata from proving the advertised >=2.0 support; either keep a 2.0.x tested/registry entry or update the supported-version contract if 2.0 is no longer supported.

Useful? React with 👍 / 👎.

[pr-commenter]

Benchmarks

Benchmark execution time: 2026-07-31 01:17:44

Comparing candidate commit 47b7a1c in PR branch upgrade-latest-langchain-version with baseline commit fdf7d2e in branch main.

Found 0 performance improvements and 6 performance regressions! Performance is the same for 615 metrics, 10 unstable metrics.

scenario:iastaspects-lstrip_aspect

• 🟥 execution_time [+70.528µs; +74.761µs] or [+22.362%; +23.704%]

scenario:iastaspects-translate_aspect

• 🟥 execution_time [+52.393µs; +57.565µs] or [+10.619%; +11.667%]

scenario:iastaspectsospath-ospathbasename_aspect

• 🟥 execution_time [+89.985µs; +97.064µs] or [+21.282%; +22.956%]

scenario:span-start

• 🟥 execution_time [+1.569ms; +1.748ms] or [+9.918%; +11.046%]

scenario:telemetryaddmetric-1-count-metric-1-times

• 🟥 execution_time [+215.356ns; +251.697ns] or [+10.357%; +12.105%]

scenario:tracer-small

• 🟥 execution_time [+32.369µs; +34.849µs] or [+9.970%; +10.733%]

[cit-pr-commenter-54b7da]

Circular import analysis

⚠️ Existing circular imports

There are 3 circular imports that already exist on the base branch and have not been changed by this PR.

ddtrace.trace -> ddtrace._trace.tracer -> ddtrace.internal.debug -> ddtrace.trace
ddtrace -> ddtrace.trace -> ddtrace._trace.tracer -> ddtrace.internal.debug -> ddtrace
ddtrace -> ddtrace.trace -> ddtrace._trace.tracer -> ddtrace.internal.debug -> ddtrace.internal.runtime.runtime_metrics -> ddtrace

[emmettbutler]

/merge

[gh-worker-devflow-routing-ef8351]

View all feedbacks in Devflow UI.

2026-07-24 18:04:08 UTC ℹ️ Start processing command /merge

---

2026-07-24 18:04:14 UTC ℹ️ MergeQueue: waiting for PR to be ready

This pull request is not mergeable according to GitHub. Common reasons include pending required checks, missing approvals, or merge conflicts — but it could also be blocked by other repository rules or settings.
It will be added to the queue as soon as checks pass and/or get approvals. View in MergeQueue UI.
Note: if you pushed new commits since the last approval, you may need additional approval.
You can remove it from the waiting list with /remove command.

---

2026-07-24 22:40:14 UTC ⚠️ MergeQueue: This merge request was unqueued

devflow unqueued this merge request: It did not become mergeable within the expected time